org.glassfish.internal.data.ApplicationDescriptorFileFinder Maven / Gradle / Ivy

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package org.glassfish.internal.data;

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Enumeration;
import java.util.LinkedList;
import java.util.List;

import org.glassfish.hk2.bootstrap.DescriptorFileFinder;

/**
 * This DescriptorFileFinder is used to find all of the META-INF/hk2-locator/application files
 * in the application
 * 
 * @author jwells
 *
 */
public class ApplicationDescriptorFileFinder implements DescriptorFileFinder {
    
    private final String resourceName;
    private final ClassLoader loaderToUse;
    
    /* package */
    ApplicationDescriptorFileFinder(ClassLoader loaderToUse, String resourceName) {
        this.resourceName = resourceName;
        this.loaderToUse = loaderToUse;
    }

    @Override
    public List findDescriptorFiles() throws IOException {
        Enumeration urls = loaderToUse.getResources(resourceName);

        LinkedList retVal = new LinkedList();
        
        while (urls.hasMoreElements()) {
            URL url = urls.nextElement();
            
            retVal.add(url.openStream());
        }
                
        return retVal;
    }

}